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Oil and Natural Gas Properties (Tables) | 3 Months Ended
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Dec. 31, 2021
Extractive Industries [Abstract] |
Schedule of Oil and Gas Properties | Oil and natural gas properties are summarized below:
| December 31, 2021 |  | September 30, 2021
| (In thousands)
Proved | $ | 421,779 |  |  | $ | 402,165 |
Unproved | 18,839 |  |  | 20,557 |
Work-in-progress | 13,534 |  |  | 11,411 |
| 454,152 |  |  | 434,133 |
Accumulated depletion and amortization | (95,021) |  |  | (88,336) |
Total oil and natural gas properties, net | $ | 359,131 |  |  | $ | 345,797 |

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